USGS Loc. 9959 - Pleasant Ridge Church [Shoal River Fm]: Serravallian, Florida
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula fornicata
(Linnaeus 1758)
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rare | ||||||||||
Crucibulum constrictum
(Conrad 1842)
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recombined as Crucibulum (Dispotaea) constrictum | ||||||||||
present; C. constrictum conjuge | ||||||||||
Gastropoda
- Turritellidae
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Turritella (Torcula) waltonensis
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original and current combination Torcula | ||||||||||
present | ||||||||||
Gastropoda
- Neogastropoda
- Columbellidae
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Strombina lampra
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present | ||||||||||
Gastropoda
- Naticidae
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Polinices (Neverita) chipolanus
Dall 1892
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recombined as Neverita chipolanus | ||||||||||
rare | ||||||||||
Euspira rotunda
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rare | ||||||||||
Natica (Tectonatica) mino
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original and current combination Tectonatica | ||||||||||
present | ||||||||||
Natica (Tectonatica) semen
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original and current combination Tectonatica | ||||||||||
present | ||||||||||
Polinices judsoni
(Maury 1910)
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original and current combination Natica judsoni | ||||||||||
present | ||||||||||
Bivalvia
- Nuculida
- Nuculidae
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Nucula defuniak
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present | ||||||||||
Bivalvia
- Carditida
- Crassatellidae
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Crassatellites (Crassinella) tanicus
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original and current combination Crassinella | ||||||||||
present | ||||||||||
Crassatellites (Scambula) densus
(Dall 1900)
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recombined as Crassatella densus | ||||||||||
present | ||||||||||
Bivalvia
- Carditida
- Carditidae
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Cardita (Carditamera) defuniak
Gardner 1947
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recombined as Carditamera (Carditamera) defuniak | ||||||||||
rare; ? in occurrence table | ||||||||||
Bivalvia
- Lucinida
- Lucinidae
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Phacoides (Pseudomiltha) paranodonta
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original and current combination Pseudomiltha | ||||||||||
rare | ||||||||||
Divaricella waltonia
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present | ||||||||||
Bivalvia
- Pandorida
- Pandoridae
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Pandora (Kennerleyia) dodona
Dall 1903
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recombined as Pandora (Pandorella) dodona | ||||||||||
rare | ||||||||||
Bivalvia
- Cardiida
- Chamidae
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Pseudochama chipolana
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rare; ? in occurrence table | ||||||||||
Bivalvia
- Cardiida
- Ungulinidae
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Diplodonta acclinis
(Conrad 1832)
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rare | ||||||||||
Bivalvia
- Cardiida
- Cardiidae
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Cardium (Cerastoderma) taphrium
Dall 1900
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recombined as Dinocardium taphrium | ||||||||||
rare | ||||||||||
Cardium (Cerastoderma) waltonianum
Dall 1900
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common | ||||||||||
Bivalvia
- Arcida
- Glycymerididae
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Glycymeris subovata
(Say 1824)
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recombined as Costaglycymeris subovata | ||||||||||
common | ||||||||||
Bivalvia
- Arcida
- Arcidae
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Arca (Diluvarca) waltonia
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spelled with current rank as Anadara (Diluvarca) | ||||||||||
common; ? in occurrence table | ||||||||||
Bivalvia
- Pectinida
- Pectinidae
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Pecten (Chlamys) nicholsi
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original and current combination Chlamys | ||||||||||
common | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Florida | County: | Walton |
Coordinates: | 30.7° North, 86.1° West (view map) | ||||
Paleocoordinates: | 31.0° North, 83.4° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Serravallian | 10 m.y. bin: | Cenozoic 5 |
Key time interval: | Serravallian | ||
Age range of interval: | 13.82000 - 11.63000 m.y. ago | ||
Age estimate: | 12.4 Ma (Sr isotope) |
Stratigraphy
Geological group: | Alum Bluff | Formation: | Shoal River | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Shoal River Fm of the Alum Bluff, which lies between the Chipola Fm (Early Miocene) and the Chochtawatchee Fm [Early Pliocene). AGE: Early Miocene (Gardener 1947); Middle Miocene in Vokes (1990) and Portell et al. (2006), although Jones et al. (1993) reports 87Sr/86Sr ratios that yielded average age estimates of 12.4 Ma [=Serravalian]. STRATIGRAPHIC POSITION: From unknown position within formation. |
Lithology and environment
Primary lithology: | unlithified calcareous marl |
Secondary lithology: | unlithified calcareous sandstone |
Lithology description: marls, sands, clays, for the most part unconsolidated, in places highly calcareous | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USGS |
Metadata
Database number: | 43048 | ||
Authorizer: | A. Miller | Enterer: | K. Layou |
Modifier: | A. Hendy | Research group: | GCP,marine invertebrate |
Created: | 2004-08-09 13:27:12 | Last modified: | 2012-12-05 21:10:52 |
Access level: | the public | Released: | 2004-08-09 13:27:12 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
11206. | J. R. Gardner. 1947. The Molluscan Fauna of the Alum Bluff Group of Florida. United States Geological Survey Professional Paper (142A-H)1-709 [A. Miller/K. Layou/A. Hendy] |